• Award Winner

Synchros S100a


Advanced in-ear stereo headphones

$79.9579.95 each
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Expected delivery time Fri Oct 07 2016.


The new JBL Synchros S100 delivers striking sound in a contemporary design. Die-cast aluminum earpieces with metal accents ensure that these headphones will stand apart from the others. Angled eartips and attention to cable management provide a comfortable, stable fit for hours of listening enjoyment. Modeled after the same JBL sound systems used in the world’s most prestigious clubs, the S100 delivers a balanced audio experience with amazing clarity and deep, powerful bass. Available in 2 colors, Onyx and Glacier, and 3 configurations; Apple 3-button remote cable universal 3-button remote cable, or straight cable. Whichever way, the Synchros S100 brings your portable listening power to a new level.

What's in the box?

  • 1 pair of JBL S100 in-ear stereo headphones
  • Carry case
  • 1 set (S/M/L) silicone tips
  • 1 set (S/M/L) Comply™ foam tips

We meant it at JBL when we said we’d build a revolutionary line of in-ear headphones. For those who know authentic elegance when they see it, and hear it – meet our new JBL S100 Headphones. Its die-cast precision and aluminum housing create headphones that are both lightweight and durable. Its angled ear tips and included ear tips make for house of quality listening. For the fearless music-lover within us all, the JBL 100 demands seeing - as much as hearing – to be believed. Score another instant JBL classic.

It’s no trade secret we’ve created the world’s most legendary loudspeakers. Artists from the Beatles to Maroon 5 have used JBL equipment to create some of their most historic recordings. So it should come as no surprise we’ve taken Pro-Audio sound to new highs – and depths – of power and portability in our Synchros Series. Introducing JBL Professional Audio Sound with PureBass performance. One listen to our S100 – and the phrase “clarity of sound” will never sound the same.

When it comes to in-ear listening, adaptability and comfort often get the boot in favor of a cheaper design… but not so at our company. The S100 In-Ear is no exception to the JBL law of “Make It Perfect”: three sizes of angled ear tips (S, M, or L) ensure your ears find their ideal fit. Meanwhile, advanced Comply™ foam tips give you premium sound isolation and an all-around superior audio performance.

On-the-go compatibility with either an Apple, universal, or straight cable remote control isn’t just a nicety these days in a headphone – it’s what you need. The JBL S100 is built with that principle in mind, coming in three possible configurations: an Apple 3-button mic/remote cable, a universal 3-button mic/remote cable, or a straight cable, keeping your listening fun and flexible. Each option adapts easily with your S100, giving you the freedom to adjust your track-list, control the volume of whatever’s playing, and switch functionality between hearing music and taking calls.

Whatever configuration your S100 flat cable comes in, it’s custom-designed to be tangle resistant.

In-Ear Headphones
Rated Input Power
Frequency Response
10Hz – 22kHz
Maximum SPL
106dB @ 5mW
Advanced 9 mm driver

The latest owner's manuals, quick start guides, and documents.

Call us: 1.800.336.4525

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Synchros S100a is rated 2.3333333333333335 out of 5 by 3.
Rated 5 out of 5 by from *Throws money at screen* best earphones ive ever used in my life. i have bought some pretty good headphones that don't compare to these. They have amazing frequency response and their phrase hear the truth is as accurate as it gets. I will definitely be buying from jbl again
Date published: 2015-12-28
Rated 1 out of 5 by from Unfortunately haven't lasted long I bought this pair of ear buds in May and at that time they worked perfectly but in the recent weeks the left ear bud has stopped working some of the time and the buttons too have only worked some of the time. A bit frustrating for the cost.
Date published: 2016-09-20
Rated 1 out of 5 by from Disappointed These headphones are not good. Very poor quality sound. My earbuds that came with my iPhone are way better. I thought for the price I was getting good quality sound but was very disappointed.
Date published: 2016-04-09
  • 2016-09-27T07:55CST
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Today i just bought jbl earphone T208 and i think this quality is too not good. Because the store didn't give me to try before. And i want too change s100. Can i ? 

Asked by: Eli jenny
We are sorry to hear that you are not satisfied with our product. Please contact your local JBL Customer Service for information about your warranty options.
Answered by: Karissa
Date published: 2016-03-17
  • 2016-09-27T07:57CST
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20% Off\n \n\n JBL\n \n Synchros S100A In-Ear Headphones with MFI 3-Button Remote/Mic, 10Hz - 22000Hz Frequency, 106dB at 5mW Maximum SPL, 3.5mm Connector, Black
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